Question

Odell tried to solve the equation 6(x+7)=4x-3 . He recorded the following steps.
6(x+7)=4x-3
6x=4x-10
2x=-10
x=-5
When Odell checked his solution it did not work. What was his mistake? Explain. Show the correct solution.

Answer 1

6(x + 7) = 4x - 3
6x + 42 = 4x - 3
6x = 4x - 3 - 42
= 4x - 45

Ans. Odell made his mistake in the second step.

Answer 2

this is already posted and solved above